Fix MIGHT_NOT_USE_FULL_NETWORK_SPEED for VOD DASH streams.

The flag compared against the nowTime in the period that is only
set to a positive value for live streams.

PiperOrigin-RevId: 350514934

library/dash/src/main/java/com/google/android/exoplayer2/source/dash/DefaultDashChunkSource.java

@@ -499,8 +499,10 @@ public class DefaultDashChunkSource implements DashChunkSource {
   }
   }
 
 
   private long getNowPeriodTimeUs(long nowUnixTimeUs) {
   private long getNowPeriodTimeUs(long nowUnixTimeUs) {
-    return nowUnixTimeUs
-        - C.msToUs(manifest.availabilityStartTimeMs + manifest.getPeriod(periodIndex).startMs);
+    return manifest.availabilityStartTimeMs == C.TIME_UNSET
+        ? C.TIME_UNSET
+        : nowUnixTimeUs
+            - C.msToUs(manifest.availabilityStartTimeMs + manifest.getPeriod(periodIndex).startMs);
   }
   }
 
 
   protected Chunk newInitializationChunk(
   protected Chunk newInitializationChunk(
@@ -797,7 +799,7 @@ public class DefaultDashChunkSource implements DashChunkSource {
     }
     }
 
 
     public boolean isSegmentAvailableAtFullNetworkSpeed(long segmentNum, long nowPeriodTimeUs) {
     public boolean isSegmentAvailableAtFullNetworkSpeed(long segmentNum, long nowPeriodTimeUs) {
-      return getSegmentEndTimeUs(segmentNum) <= nowPeriodTimeUs;
+      return nowPeriodTimeUs == C.TIME_UNSET || getSegmentEndTimeUs(segmentNum) <= nowPeriodTimeUs;
     }
     }
 
 
     @Nullable
     @Nullable

library/dash/src/test/java/com/google/android/exoplayer2/source/dash/DefaultDashChunkSourceTest.java

@@ -43,6 +43,8 @@ public class DefaultDashChunkSourceTest {
   private static final String SAMPLE_MPD_LIVE_WITH_OFFSET_INSIDE_WINDOW =
   private static final String SAMPLE_MPD_LIVE_WITH_OFFSET_INSIDE_WINDOW =
       "media/mpd/sample_mpd_live_with_offset_inside_window";
       "media/mpd/sample_mpd_live_with_offset_inside_window";
 
 
+  private static final String SAMPLE_MPD_VOD = "media/mpd/sample_mpd_vod";
+
   @Test
   @Test
   public void getNextChunk_forLowLatencyManifest_setsCorrectMayNotLoadAtFullNetworkSpeedFlag()
   public void getNextChunk_forLowLatencyManifest_setsCorrectMayNotLoadAtFullNetworkSpeedFlag()
       throws Exception {
       throws Exception {
@@ -89,4 +91,41 @@ public class DefaultDashChunkSourceTest {
     assertThat(output.chunk.dataSpec.flags & DataSpec.FLAG_MIGHT_NOT_USE_FULL_NETWORK_SPEED)
     assertThat(output.chunk.dataSpec.flags & DataSpec.FLAG_MIGHT_NOT_USE_FULL_NETWORK_SPEED)
         .isNotEqualTo(0);
         .isNotEqualTo(0);
   }
   }
+
+  @Test
+  public void getNextChunk_forVodManifest_doesNotSetMayNotLoadAtFullNetworkSpeedFlag()
+      throws Exception {
+    long nowMs = 2_000_000_000_000L;
+    SystemClock.setCurrentTimeMillis(nowMs);
+    DashManifest manifest =
+        new DashManifestParser()
+            .parse(
+                Uri.parse("https://example.com/test.mpd"),
+                TestUtil.getInputStream(
+                    ApplicationProvider.getApplicationContext(), SAMPLE_MPD_VOD));
+    DefaultDashChunkSource chunkSource =
+        new DefaultDashChunkSource(
+            new LoaderErrorThrower.Dummy(),
+            manifest,
+            /* periodIndex= */ 0,
+            /* adaptationSetIndices= */ new int[] {0},
+            new FixedTrackSelection(new TrackGroup(new Format.Builder().build()), /* track= */ 0),
+            C.TRACK_TYPE_VIDEO,
+            new FakeDataSource(),
+            /* elapsedRealtimeOffsetMs= */ 0,
+            /* maxSegmentsPerLoad= */ 1,
+            /* enableEventMessageTrack= */ false,
+            /* closedCaptionFormats */ ImmutableList.of(),
+            /* playerTrackEmsgHandler= */ null);
+
+    ChunkHolder output = new ChunkHolder();
+    chunkSource.getNextChunk(
+        /* playbackPositionUs= */ 0,
+        /* loadPositionUs= */ 0,
+        /* queue= */ ImmutableList.of(),
+        output);
+
+    assertThat(output.chunk.dataSpec.flags & DataSpec.FLAG_MIGHT_NOT_USE_FULL_NETWORK_SPEED)
+        .isEqualTo(0);
+  }
 }
 }

testdata/src/test/assets/media/mpd/sample_mpd_vod

+<?xml version="1.0" encoding="UTF-8"?>
+<MPD xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xmlns="urn:mpeg:dash:schema:mpd:2011"
+  xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011"
+  minBufferTime="PT1S"
+  profiles="urn:mpeg:dash:profile:isoff-main:2011"
+  type="static"
+  mediaPresentationDuration="PT904S">
+  <Period id="1" duration="PT904S" start="PT0S">
+    <AdaptationSet id="0" mimeType="video/mp4" contentType="video" segmentAlignment="true" startWithSAP="1">
+      <Role schemeIdUri="urn:mpeg:dash:role:2011" value="main"/>
+      <SegmentTemplate presentationTimeOffset="0" media="video_$Time$_$Bandwidth$.m4s" timescale="1000" >
+        <SegmentTimeline>
+          <S d="4000" r="225"/>
+        </SegmentTimeline>
+      </SegmentTemplate>
+      <Representation id="0" codecs="avc1.4d401e" width="768" height="432" frameRate="25" bandwidth="1300000"/>
+      <Representation id="1" codecs="avc1.4d4015" width="512" height="288" frameRate="25" bandwidth="700000"/>
+      <Representation id="2" codecs="avc1.4d4015" width="512" height="288" frameRate="25" bandwidth="452000"/>
+      <Representation id="3" codecs="avc1.42c00c" width="400" height="224" frameRate="25/2" bandwidth="250000"/>
+      <Representation id="4" codecs="avc1.42c00b" width="400" height="224" frameRate="5" bandwidth="50000"/>
+    </AdaptationSet>
+    <AdaptationSet id="1" lang="fr" mimeType="audio/mp4" contentType="audio" codecs="mp4a.40.2" segmentAlignment="true" startWithSAP="1">
+      <AudioChannelConfiguration schemeIdUri="urn:mpeg:mpegB:cicp:ChannelConfiguration" value="2"/>
+      <SegmentTemplate presentationTimeOffset="0" media="audio_$Time$_$Bandwidth$.m4s" timescale="1000" >
+        <SegmentTimeline>
+          <S d="3200" r="281"/>
+          <S d="1600"/>
+        </SegmentTimeline>
+      </SegmentTemplate>
+      <Representation id="5" bandwidth="128000"/>
+    </AdaptationSet>
+  </Period>
+</MPD>